2011 Leaf Springs Compared to 08-10? - Ford Powerstroke Diesel Forum

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post #1 of 16 Old 05-12-2011, 04:19 PM Thread Starter
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2011 Leaf Springs Compared to 08-10?

Anyone know the difference between the 2011 Leaf Springs compared to the 2008-2010 Leaf Springs? My 2008 Leaf Spring has five leafs plus the overload, and I have heard talk of the 2001 Leaf Springs only having three leafs.

Just curious what the differences are, ride wise, load capacity wise etc.

2005 F350 Crew Cab 4x4

PMF Rear Leaf Spring Conversion w/2011 Leaf Springs
20" Harley Wheels 305/55/20 Nitto Terra Grapplers
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post #2 of 16 Old 05-12-2011, 08:11 PM
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My F350 has 3 thick leaves plus an overload. Rides twice as good as my 08 did.

2011 F350 Lariat SRW Crew Cab Long Bed 4x4 6.7 H&S Mini Maxx DPF Delete EGR Delete running 265/70/19.5's

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post #3 of 16 Old 05-13-2011, 07:02 AM
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Yeap I have Been reading that the New trucks ride way better,but The rear sags faster under a load,For those that Pull They just Throw a set of air bags under the rear and have the Best of Both worlds :~)
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post #4 of 16 Old 05-13-2011, 07:04 AM Thread Starter
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Anyone have a set they took off? I'll be a guinea pig!!!

2005 F350 Crew Cab 4x4

PMF Rear Leaf Spring Conversion w/2011 Leaf Springs
20" Harley Wheels 305/55/20 Nitto Terra Grapplers
ARP Studs & EGR Delete from PowerStrokeMagic w/GearHead Tunes
Amp Research Steps, MBRP



"Two in the heart, and one in the head, I don't like repeat offenders, I like dead offenders!" -- Ted Nugent
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post #5 of 16 Old 05-13-2011, 09:39 AM
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My 2011 F250 seems to handle the 5th wheel hitch weight about the same as my 2001 did with only 2 main springs plus the overload on the bottom. It sits level with about 1500 pound hitch weight and a little higher in the back with no weight involved. The ride on the 11 is much better.
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post #6 of 16 Old 05-13-2011, 02:21 PM
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I find the 2011's sage less or as much as the 08's . Being that I've had both, nut the ride quality and control and sound is way better in the new ones

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post #7 of 16 Old 05-13-2011, 02:23 PM
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2011 springs are made with unobtainium

Allen
1999.5 F-350 7.3, six-speed


Last edited by late_99_PSD; 05-13-2011 at 02:55 PM.
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post #8 of 16 Old 05-13-2011, 02:47 PM Thread Starter
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I'm going to keep my eyes open for a used set so I can try them out.

2005 F350 Crew Cab 4x4

PMF Rear Leaf Spring Conversion w/2011 Leaf Springs
20" Harley Wheels 305/55/20 Nitto Terra Grapplers
ARP Studs & EGR Delete from PowerStrokeMagic w/GearHead Tunes
Amp Research Steps, MBRP



"Two in the heart, and one in the head, I don't like repeat offenders, I like dead offenders!" -- Ted Nugent
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post #9 of 16 Old 05-13-2011, 07:46 PM
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To the Original Poster...

Read this article, specifically under "Chassis and Suspension Changes".

First Look: 2011 Ford F-Series Super Duty - PickupTrucks.com Special Reports

2011 F250 4x4, XLT, CC, SB, SRW, 6.7L PSD
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post #10 of 16 Old 05-14-2011, 03:13 AM Thread Starter
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Thanks for the link!!! Here is what it sais:

The suspension has been tuned up, too. The shocks have new internal valve settings and the spring rates have been adjusted for better ride comfort. In 2008, Ford introduced its 3-plus-1 spring pack for both the diesel and gas trucks but the 2011 model SD pickups with diesel engines are setup with a new 2-plus-1 kit. Brewer said the 2-plus-1 setup reduces some of the spring binding from friction that drivers felt as a secondary impact after hitting road bumps. It also saves weight for improved fuel economy.

2005 F350 Crew Cab 4x4

PMF Rear Leaf Spring Conversion w/2011 Leaf Springs
20" Harley Wheels 305/55/20 Nitto Terra Grapplers
ARP Studs & EGR Delete from PowerStrokeMagic w/GearHead Tunes
Amp Research Steps, MBRP



"Two in the heart, and one in the head, I don't like repeat offenders, I like dead offenders!" -- Ted Nugent
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